Cotton Pygmy-goose

The male Nettapus coromandelianus has a dark brown forehead and crown and a broad, green-black collar at the base of the neck. The sides of the head and neck are whitish. The back of the body is dark brown with a green and purple sheen. Females are more plain with a brown stripe through the eyes. This species has red irises and black legs. When flying, the female has a thin white border on the tip of the wing, while the male has a large white stripe on the wing.